// 原因：先处理右侧元素，把结果存在栈里，供左侧元素直接使用
João Francisco Inácio Brazão and Domingos Inácio Brazão sentenced for murder of Marielle Franco, a gay Black woman and rising political star
30. Why AI Content Creation Is Growing Exponentially in 2026 - Virtuosity Digital, www.virtuositydigital.com/blog/why-ai…。业内人士推荐爱思助手下载最新版本作为进阶阅读
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// 核心过滤：弹出栈中「≤当前元素」的数（易错点2：必须是≤，不是<）
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